"""Email service using aiosmtplib for contact and rental confirmation emails."""
import logging
from email.mime.text import MIMEText
from email.mime.multipart import MIMEMultipart
from typing import Any
import aiosmtplib
from app.config import get_settings

logger = logging.getLogger(__name__)
settings = get_settings()


class EmailService:
    """Send transactional emails via SMTP."""

    async def send_email(
        self,
        to_addr: str,
        subject: str,
        html_body: str,
        text_body: str = "",
        reply_to: str | None = None,
    ) -> bool:
        """Send an email via aiosmtplib. Returns True on success."""
        msg = MIMEMultipart("alternative")
        msg["From"] = settings.smtp_from
        msg["To"] = to_addr
        msg["Subject"] = subject
        if reply_to:
            msg["Reply-To"] = reply_to
        msg.attach(MIMEText(text_body or html_body, "plain"))
        msg.attach(MIMEText(html_body, "html"))

        try:
            await aiosmtplib.send(
                msg,
                hostname=settings.smtp_host,
                port=settings.smtp_port,
                username=settings.smtp_user,
                password=settings.smtp_password,
                start_tls=True,
            )
            return True
        except Exception as exc:
            logger.error("Email send failed to %s: %s", to_addr, exc)
            return False

    async def send_contact_email(self, contact_data: dict[str, Any]) -> bool:
        """Send contact form data to info@hms-licht-ton.de."""
        html = f"""
        <h2>Neue Kontaktanfrage</h2>
        <p><strong>Name:</strong> {contact_data.get('name', '')}</p>
        <p><strong>Email:</strong> {contact_data.get('email', '')}</p>
        <p><strong>Telefon:</strong> {contact_data.get('phone', '')}</p>
        <p><strong>Nachricht:</strong></p>
        <p>{contact_data.get('message', '')}</p>
        """
        text = (
            f"Neue Kontaktanfrage\n"
            f"Name: {contact_data.get('name', '')}\n"
            f"Email: {contact_data.get('email', '')}\n"
            f"Telefon: {contact_data.get('phone', '')}\n"
            f"Nachricht: {contact_data.get('message', '')}\n"
        )
        return await self.send_email(
            to_addr=settings.smtp_from,
            subject="Neue Kontaktanfrage ueber hms-licht-ton.de",
            html_body=html,
            text_body=text,
            reply_to=contact_data.get("email"),
        )

    async def send_rental_confirmation(
        self,
        to_addr: str,
        reference_number: str,
        event_name: str,
        items: list[dict[str, Any]],
    ) -> bool:
        """Send rental request confirmation to customer."""
        items_html = "".join(
            f"<li>{item.get('equipment_name', 'Unbekannt')} - Menge: {item.get('quantity', 1)}</li>"
            for item in items
        )
        html = f"""
        <h2>Mietanfrage bestätigt – {reference_number}</h2>
        <p>Vielen Dank für Ihre Mietanfrage bei HMS Licht &amp; Ton.</p>
        <p><strong>Veranstaltung:</strong> {event_name}</p>
        <p><strong>Referenznummer:</strong> {reference_number}</p>
        <h3>Artikel:</h3>
        <ul>{items_html}</ul>
        <p>Wir melden uns in Kürze bei Ihnen.</p>
        <p>Ihr HMS Licht &amp; Ton Team</p>
        """
        text = (
            f"Mietanfrage bestaetigt - {reference_number}\n"
            f"Veranstaltung: {event_name}\n"
            f"Referenznummer: {reference_number}\n"
            f"Artikel:\n"
            + "\n".join(
                f"- {item.get('equipment_name', 'Unbekannt')}: {item.get('quantity', 1)}"
                for item in items
            )
        )
        return await self.send_email(
            to_addr=to_addr,
            subject=f"Mietanfrage bestaetigt – {reference_number}",
            html_body=html,
            text_body=text,
        )